EPA Method 8330 Analyte Back Catalog number: 79249 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675370 Sulfamethoxypyridazine, 250mg Price on request 50194 Arsenic (As) Price on request DPE-28 2,4,4'-Trichlorodiphenyl ether, 1.2ml x 50ug/ml, nonane Price on request